**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 126-98-7 |Methacrylonitrile | 99 | 204-817-5 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: T F N
Risk Phrases: 11 23/24/25 43 51/53
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Highly flammable. Toxic by inhalation, in contact with skin and if
swallowed. May cause sensitization by skin contact. Toxic to aquatic
organisms, may cause long-term adverse effects in the aquatic
environment.
Potential Health Effects
Eye:
Causes eye irritation. Lachrymator (substance which increases the
flow of tears).
Skin:
Causes skin irritation. Harmful if absorbed through the skin. May
cause skin sensitization, an allergic reaction, which becomes
evident upon re-exposure to this material. Substance is readily
absorbed through the skin.
Ingestion:
Harmful if swallowed. May cause irritation of the digestive tract.
Inhalation:
Harmful if inhaled. Causes respiratory tract irritation. May be
fatal if exposed to high concentrations. Vapors may cause dizziness
or suffocation.
Chronic:
No information found.
**** SECTION 4 - FIRST AID MEASURES ****
Eyes:
Flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid
immediately.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15
minutes while removing contaminated clothing and shoes. Wash clothing
before reuse.
Ingestion:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Never give anything by mouth to an unconscious person. Get medical
aid immediately.
Inhalation:
Remove from exposure and move to fresh air immediately. If not
breathing, give artificial respiration. If breathing is difficult,
give oxygen. Get medical aid. Severe acute inhalations should be
treated like cyanide poisoning.
Notes to Physician:
Antidote:
Always have a cyanide antidote kit on hand when working with cyanide
compounds. Get medical advice to use.
**** SECTION 5 - FIRE FIGHTING MEASURES ****
General Information:
As in any fire, wear a self-contained breathing apparatus in
pressure-demand, MSHA/NIOSH (approved or equivalent), and full
protective gear. Vapors may form an explosive mixture with air.
Vapors can travel to a source of ignition and flash back. Use water
spray to keep fire-exposed containers cool. Extremely flammable
liquid and vapor. Containers may explode in the heat of a fire.
Flammable liquid and vapor. Will be easily ignited by heat, sparks
or flame.
Extinguishing Media:
For small fires, use dry chemical, carbon dioxide, water spray or
alcohol-resistant foam. For large fires, use water spray, fog, or
alcohol-resistant foam. Use water spray to cool fire-exposed
containers. Water may be ineffective. Do NOT use straight streams of
water.
**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****
General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth),
then place in suitable container. Avoid runoff into storm sewers and
ditches which lead to waterways. Clean up spills immediately,
observing precautions in the Protective Equipment section. Remove all
sources of ignition. Use a spark-proof tool. A vapor suppressing foam
may be used to reduce vapors.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Wash thoroughly after handling. Ground and bond containers when
transferring material. Do not get in eyes, on skin, or on clothing.
Empty containers retain product residue, (liquid and/or vapor), and
can be dangerous. Keep container tightly closed. Do not pressurize,
cut, weld, braze, solder, drill, grind, or expose empty containers
to heat, sparks or open flames. Keep away from heat, sparks and
flame. Do not breathe vapor or mist. Use only with adequate
ventilation or respiratory protection.
Storage:
Keep away from sources of ignition. Refrigerator/flammables. Keep
containers tightly closed.
**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****
Engineering Controls:
Facilities storing or utilizing this material should be equipped
with an eyewash facility and a safety shower. Use adequate general or
local exhaust ventilation to keep airborne concentrations below the
permissible exposure limits.
Exposure Limits
CAS# 126-98-7:
United Kingdom, WEL - TWA: 1 ppm TWA; 2.8 mg/m3 TWA
United Kingdom, WEL - STEL: 3 ppm STEL; 8.4 mg/m3 STEL
Belgium - TWA: 1 ppm VLE; 2.7 mg/m3 VLE
France - VME: 1 ppm VME; 3 mg/m3 VME
Malaysia: 1 ppm TWA; 27 mg/m3 TWA
Netherlands: 1 ppm MAC; 3 mg/m3 MAC
Spain: 1 ppm VLA-ED; 2.7 mg/m3 VLA-ED
Personal Protective Equipment
Eyes:
Wear chemical splash goggles and face shield.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear appropriate protective clothing to prevent skin
exposure.
Respirators:
Follow the OSHA respirator regulations found in 29
CFR 1910.134 or European Standard EN 149. Use a
NIOSH/MSHA or European Standard EN 149 approved
respirator if exposure limits are exceeded or if
irritation or other symptoms are experienced.
**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
Physical State: Liquid
Color: clear, colorless to pale yellow
Odor: bitter-almond
pH: Not available.
Vapor Pressure: 64.4 mbar @ 20
Viscosity: 0.39 MPA 20.00 deg
Boiling Point: 90 - 92 deg C @ 760 mm Hg
Freezing/Melting Point: -35.8 deg C
Autoignition Temperature: Not available.
Flash Point: 12 deg C ( 53.60 deg F)
Explosion Limits, lower: 2.00 vol %
Explosion Limits, upper: 6.80 vol %
Decomposition Temperature:
Solubility in water: Insoluble.
Specific Gravity/Density: .8000g/cm3
Molecular Formula: C4H5N
Molecular Weight: 67.09
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable under normal temperatures and pressures. When heated to
decompostion cyanide fumes are released.
Conditions to Avoid:
Ignition sources, excess heat, confined spaces.
Incompatibilities with Other Materials:
Strong oxidizing agents, strong reducing agents, strong acids, strong
bases, chlorates, nitrates.
Hazardous Decomposition Products:
Nitrogen oxides, carbon monoxide, carbon dioxide, cyanides.
Hazardous Polymerization: Has not been reported.
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 126-98-7: UD1400000
LD50/LC50:
CAS# 126-98-7: Draize test, rabbit, eye: 50 mg; Draize test, rabbit,
eye: 500 mg/24H Mild; Draize test, rabbit, skin: 200 mg Mild; Draize
test, rabbit, skin: 500 mg/24H Mild; Inhalation, mouse: LC50 = 36
ppm/4H; Inhalation, rabbit: LC50 = 37 ppm/4H; Inhalation, rat: LC50
= 328 ppm/4H; Oral, mouse: LD50 = 17 mg/kg; Oral, rabbit: LD50 = 16
mg/kg; Oral, rat: LD50 = 120 mg/kg; Skin, rabbit: LD50 = 12500
ug/kg; Skin, rat: LD50 = 2080 mg/kg.
Carcinogenicity:
Methacrylonitrile -
Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
**** SECTION 13 - DISPOSAL CONSIDERATIONS ****
Dispose of in a manner consistent with federal, state, and local regulations.
**** SECTION 14 - TRANSPORT INFORMATION ****
IATA
Shipping Name: METHACRYLONITRILE, STABILIZED
Hazard Class: 3 (6.1)
UN Number: 3079
Packing Group: I
IMO
Shipping Name: METHACRYLONITRILE, STABILIZED
Hazard Class: 3 (6.1)
UN Number: 3079
Packing Group: I
RID/ADR
Shipping Name: METHACRYLONITRILE, STABILIZED
Hazard Class: 3
UN Number: 3079
Packing group: I
USA RQ: CAS# 126-98-7: 1000 lb final RQ; 454 kg final RQ
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T F N
Risk Phrases:
R 11 Highly flammable.
R 23/24/25 Toxic by inhalation, in contact with skin
and if swallowed.
R 43 May cause sensitization by skin contact.
R 51/53 Toxic to aquatic organisms, may cause
long-term adverse effects in the aquatic environment.
Safety Phrases:
S 9 Keep container in a well-ventilated place.
S 16 Keep away from sources of ignition - No
smoking.
S 18 Handle and open container with care.
S 29 Do not empty into drains.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 126-98-7: 2
Canada
CAS# 126-98-7 is listed on Canada's NDSL List.
CAS# 126-98-7 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 126-98-7 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
MSDS Creation Date: 11/17/1998 Revision #4 Date: 8/27/2003
The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no way shall the company be
liable for any claims, losses, or damages of any third party or for lost
profits or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
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